Article(id=1212342500237373882, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1212342494176604450, articleNumber=null, orderNo=22, doi=10.3981/j.issn.1000-7857.2025.05.00060, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1746720000000, receivedDateStr=2025-05-09, revisedDate=1749398400000, revisedDateStr=2025-06-09, acceptedDate=null, acceptedDateStr=null, onlineDate=1766974576291, onlineDateStr=2025-12-29, pubDate=1761580800000, pubDateStr=2025-10-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1764950400000, onlineIssueDateStr=2025-12-06, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1766974576291, creator=13701087609, updateTime=1774080184290, updator=sys-migrate, issue=Issue{id=1212342494176604450, tenantId=1146029695717560320, journalId=1146031591421210625, year='2025', volume='43', issue='20', pageStart='1', pageEnd='140', issueExtLink='null', onlineDate='null', pubDate='1761580800000', pubDateStr='2025-10-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1766974574846, creator='13701087609', updateTime=1774330588720, updator='13041195026', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1243195852664189609, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1212342494176604450, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1243195852668383914, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1212342494176604450, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=105, endPage=114, ext={EN=ArticleExt(id=1212342500602278343, articleId=1212342500237373882, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Sensing−assisted Communication: An online intelligent prediction method of doppler frequency shift for high−speed mobile communication, columnId=1150494644690366681, journalTitle=Science & Technology Review, columnName=Papers, runingTitle=null, highlight=null, articleAbstract=
With the rapid development of high−speed transportation networks and the continuous advancement of sixth−generation (6G) mobile communication technologies, the demand for reliable wireless connectivity in high−mobility scenarios has grown significantly. However, the high Doppler shift induced by user mobility leads to rapidly time−varying channels, significantly degrading communication reliability and transmission quality. To address this challenge, this paper proposes an integrated sensing and communication (ISAC) approach, where the base station simultaneously communicates with high−speed users and receives echo signals to predict the Doppler shift. The predicted Doppler shift is then pre−compensated to reduce signal processing complexity at the receiver and improve communication quality. Specifically, this paper introduces an intelligent online Doppler shift prediction method based on long short−term memory (LSTM) networks for orthogonal frequency division multiplexing (OFDM) systems in high−speed mobility scenarios. In this method, the base station estimates the current Doppler shift based on received echo signals and e*mploys an LSTM model to predict Doppler shifts in real−time for the subsequent moment. To effectively handle dynamic environments, the proposed model utilizes an online updating strategy, where LSTM model parameters are updated in real−time after receiving echoes and estimating Doppler shift. To evaluate the performance of the proposed model, we compare the LSTM−based prediction results with those obtained using an unscented Kalman filter (UKF). Prediction accuracy is analyzed under varying conditions of mobile speeds and signal−to−noise ratios. Simulation results demonstrate that the proposed online LSTM prediction model exhibits superior accuracy and robustness in nonlinear Doppler shift prediction compared to the UKF model, providing an efficient and reliable solution for online Doppler shift prediction in highly dynamic communication environments.
, authors=null, authorsList=Xinzhe BAI, Zhouyuan YU, Xiaoling HU, Chenxi LIU, Mugen PENG, authorCompany=null, correspAuthors=Xiaoling HU, authorNote=null, correspAuthorsNote=null, copyrightStatement=
All rights reserved. Unauthorized reproduction is prohibited., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1212342502422606373, articleId=1212342500237373882, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=面向高速移动通信的多普勒频移在线智能预测方法, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
随着高速交通网络的快速发展以及第6代移动通信技术的持续推进,高速移动场景下的用户通信需求急剧增长。然而,用户高速移动带来的高多普勒频移将导致信道快速时变,严重降低了通信的可靠性和传输质量。针对该挑战,提出结合通感一体化技术,基站在和高速用户通信的同时,接收回波信号以预测多普勒频移,并对多普勒频移进行预先补偿,从而降低接收端通信信号处理复杂度并提升通信质量。针对高速移动场景下的正交频分复用(orthogonal frequency division multiplexing,OFDM)通感一体化系统,提出了一种基于长短期记忆网络(long short−term memory,LSTM)模型的在线多普勒频移智能预测方法,该方法基站根据接收回波信号,估计当前多普勒频移,并利用LSTM模型实时预测下一时刻的频移。为适应动态环境,所提模型采用在线更新策略,在每次接收回波并估计得到新的多普勒频移数据后实时更新LSTM模型参数。为评估模型性能,将LSTM预测结果与无迹卡尔曼滤波(unscented Kalman filter,UKF)模型及Transformer模型进行对比,分析其在不同移动速度和信噪比条件下的预测精度。仿真结果表明,所提LSTM在线预测模型对非线性多普勒频移预测的准确性和鲁棒性均优于UKF模型和Transformer模型,为高动态通信环境下的频移在线预测提供了高效可靠的解决方案。
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版权所有,未经授权,不得转载。, copyrightOwner=《科技导报》编辑部, extLink=null, articleAbsUrl=null, sourceXml=6Lvzu18mRkF/4ljo3U1+ZQ==, magXml=6Lvzu18mRkF/4ljo3U1+ZQ==, pdfUrl=null, pdf=JBiiW7WO6D2aBUBCZtwHwA==, pdfFileSize=2217416, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=p2bMITfzr1ztXVCMiBzLQw==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=By6GjR6NkogpHyI5dQXYAA==, mapNumber=null, fund=null)}, authors=[Author(id=1242145622023807001, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1212342500237373882, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=2024110285@bupt.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1242145622090915868, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1212342500237373882, authorId=1242145622023807001, language=EN, stringName=Xinzhe BAI, firstName=Xinzhe, middleName=null, lastName=BAI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1242145622153830430, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1212342500237373882, authorId=1242145622023807001, language=CN, stringName=白新哲, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=北京邮电大学信息与通信工程学院,北京 100876, bio={"content":"
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| 速度模型 | 预测方法 | RMSE/Hz | MAE/Hz |
|---|
| 线性 | 本文方法 | 2.7672 | 2.1698 |
| UKF | 3.0005 | 2.2695 |
| Transformer | 2.9702 | 2.2936 |
| 非线性 | 本文方法 | 3.3682 | 2.6274 |
| UKF | 7.4929 | 5.2925 |
| Transformer | 3.8077 | 2.9011 |
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多普勒预测精度评估指标统计
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| 速度模型 | 预测方法 | RMSE/Hz | MAE/Hz |
|---|
| 线性 | 本文方法 | 2.7672 | 2.1698 |
| UKF | 3.0005 | 2.2695 |
| Transformer | 2.9702 | 2.2936 |
| 非线性 | 本文方法 | 3.3682 | 2.6274 |
| UKF | 7.4929 | 5.2925 |
| Transformer | 3.8077 | 2.9011 |
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| 预测方法 | RMSE/Hz | MAE/Hz |
|---|
| 本文方法 | 5.0613 | 3.8900 |
| UKF | 7.8509 | 5.4497 |
| Transformer | 5.2149 | 4.0354 |
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低信噪比预测精度评估指标统计
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| 预测方法 | RMSE/Hz | MAE/Hz |
|---|
| 本文方法 | 5.0613 | 3.8900 |
| UKF | 7.8509 | 5.4497 |
| Transformer | 5.2149 | 4.0354 |
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| 时间步长/帧 | RMSE/Hz | MAE/Hz |
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| 10 | 3.4700 | 2.6855 |
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| 时间步长/帧 | RMSE/Hz | MAE/Hz |
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| 10 | 3.4700 | 2.6855 |
| 20 | 4.4031 | 3.4230 |
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